I'm running OS 4.5.0.77 (Verizon) and I just did a wipe reloaded the OS. I've successfully paired a Plantronics Voyager 520 and a Motorola HS850 bluetooth headset. I can use the headset to pick up calls, end/reject calls, send calls back to the handset, redial, activate voice dialing--the whole feature set. But I can't hear any call audio, and the person on the other end can't hear me. So, my 8310 is accepting commands from the headset but isn't streaming audio to or from it. I can hear all of the tones in both headsets that indicate a call is being received, etc.

The phone defaults to the handsfree bluetooth profile, so I've tried disabling that one and connecting with the headset profile instead, to no avail.

Has anyone else experienced this? What on earth am I doing wrong? I know the 8130 works with these headsets, but mine sure doesn't seem to. Can anyone help?

may be this is because of mono and stereo bluetooth headset differences. which one you are using ? however there can be a compatibility issues in some cell phone accessories, try changing the bluetooth headset brand, may be it works this way.

Mine will do the same thing with my Pontiac G8 bluetooth. Does anyone have suggestions?